Stability of capillary hypersurfaces in a manifold with density

Stability of capillary hypersurfaces in a manifold with density
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密度流形中毛细管超曲面的稳定性

DOI:
10.1142/s0129167x16500622
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发表时间:
2016-07
影响因子:
0.6
通讯作者:
Xiong, Changwei
Xiong, Changwei
中科院分区:
数学4区
文献类型:
--
作者:
Li, Haizhong;Xiong, Changwei

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我们在具有密度的流形中引入毛细超曲面及其稳定性。证明了具有适当径向密度的空间形式测地球面中具有自由边界的稳定f-极小超曲面一定是全测地的。我们还证明了具有适当密度的欧几里德球中毛细超曲面不稳定的两个判据。最后,在一定条件下,得到了具有密度的三维流形中强稳定毛细曲面的一个拓扑限制。这些结果推广了常密度流形中的结果。
We introduce capillary hypersurfaces and its stability in a manifold with density. We prove that stable f-minimal hypersurfaces with free boundary in a geodesic ball in space form with suitable radial density must be totally geodesic. We also prove two criteria for instability of the capillary hypersurfaces in a Euclidean ball with suitable density. At last, we obtain a topological restriction on strongly stable capillary surfaces in a 3-manifold with density under certain conditions. These results generalize those in a manifold with constant density.
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